Linux查看操作系统版本号

[root@iZj6c09e4pbixx5c6cuwzzZ ~]# lsb_release -a
LSB Version:	:core-4.1-amd64:core-4.1-noarch
Distributor ID:	CentOS
Description:	CentOS Linux release 7.8.2003 (Core)
Release:	7.8.2003
Codename:	Core

pi@raspberrypi:~ $ lsb_release -a
No LSB modules are available.
Distributor ID:	Raspbian
Description:	Raspbian GNU/Linux 10 (buster)
Release:	10
Codename:	buster

对于 Red Hat

[root@iZ8vbcjkeqbrdmmbt23vboZ ~]# cat /etc/redhat-release
CentOS Linux release 7.7.1908 (Core)

[root@iZ8vbcjkeqbrdmmbt23vboZ ~]# cat /proc/version
Linux version 3.10.0-1062.18.1.el7.x86_64 (mockbuild@kbuilder.bsys.centos.org) (gcc version 4.8.5 20150623 (Red Hat 4.8.5-39) (GCC) ) #1 SMP Tue Mar 17 23:49:17 UTC 2020

root@15cc59636d4e:/apache-zookeeper-3.8.0-bin# cat /etc/issue
Ubuntu 22.04.1 LTS \n \l

root@15cc59636d4e:/apache-zookeeper-3.8.0-bin# cat /etc/os-release
PRETTY_NAME="Ubuntu 22.04.1 LTS"
NAME="Ubuntu"
VERSION_ID="22.04"
VERSION="22.04.1 LTS (Jammy Jellyfish)"
VERSION_CODENAME=jammy
ID=ubuntu
ID_LIKE=debian
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
UBUNTU_CODENAME=jammy
root@15cc59636d4e:/apache-zookeeper-3.8.0-bin#